No Man Is an Island can refer to:
- A famous line from "Meditation XVII," by the English poet John Donne
- A book by the Trappist monk Thomas Merton
- No Man Is an Island (Hallmark), a 1953 episode of the Hallmark Hall of Fame about the life of John Donne..
- No Man Is an Island (film), a 1962 film based on the experiences of George Ray Tweed, an American sailor on Guam
- No Man Is an Island (music), the chamber cantata of Ukrainian composer Victoria Poleva on the text from "Meditation XVII" by J. Donne (2008) for mezzo (women's choir), piano and Strings
- No Man is an Island (album), the debut album from reggae singer Dennis Brown
- Proverbs, "All mankind is of one author, and is one volume; when one man dies, one chapter is not torn out of the book, but translated into a better language; and every chapter must be so translated ... As therefore the bell that rings to a sermon, calls not upon the preacher only, but upon the congregation to come: so this bell calls us all: but how much more me, who am brought so near the door by this sickness ... No man is an island, entire of itself ... any man's death diminishes me, because I am involved in mankind; and therefore never send to know for whom the bell tolls; it tolls for thee."